Acoustics; hearing protectors; part 3: simplified method for the measurement of insertion loss of ear-muff type protectors for quality inspection purposes (ISO/TR 4869-3:1989); German version EN 24869-3:1993— 10 стр.
Measurement and characterisation of ultrasonic fields using hydrophones in the frequency range 0,5 MHz to 15 MHz (IEC 61102:1991 + A1:1993); German version EN 61102:1993 + A1:1994— 31 стр.
Magnetic tape sound recording and reproducing systems - Part 1: General conditions and requirements (IEC 60094-1:1981 + A1:1994); German version EN 60094-1:1993 + A1:1994— 16 стр.
The absolute calibration of hydrophones using the planar scanning technique in the frequency range 0,5 MHz to 15 MHz (IEC 61101:1991); German version EN 61101:1993— 15 стр.
Environmental testing - Part 2: Methods of test; test Fg: Vibration, acoustically induced (IEC 60068-2-65:1993); German version EN 60068-2-65:1994— 18 стр.
Measurement microphones - Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique (IEC 61094-3:1995); German version EN 61094-3:1995— 14 стр.